Imperial Topaz and Neptunite Physical Properties

Imperial Topaz

Neptunite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.49-3.573.19-3.23

1 7.18

1.5 Fracture

Uneven

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Not Available

{110} good

1.7 Mohs Hardness

85-6

2 10

1.8 Chemical Composition

Not Available

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Imperial Topaz and Neptunite Chemical Formula

While comparing Imperial Topaz and Neptunite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Imperial Topaz and Neptunite chemical formula.

Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

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Imperial Topaz Vs Microlite

Imperial Topaz Vs Mimetite

Imperial Topaz and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Imperial Topaz and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Imperial Topaz and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Imperial Topaz is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.